Home / 33,107.76-45,695.84-20,371.77

Finding the Fourth Proportional to 33,107.76, 45,695.84 and 20,371.77

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Solution

The fourth proportional to 33,107.76, 45,695.84 and 20,371.77 is: 28,117.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,107.76 : 45,695.84 = 20,371.77 : x
  2. Step 2: Convert to fraction form
    33,107.76/45,695.84 = 20,371.77/x
  3. Step 3: Cross multiply
    33,107.76x = 45,695.84 × 20,371.77
  4. Step 4: Simplify right side
    33,107.76x = 930,905,040.58
  5. Step 5: Solve for x
    x = 930,905,040.58/33,107.76
  6. Step 6: Final answer
    x = 28,117.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.